Means for making nails



July 9, 1935. G. F. SHEARMA N MEANS FOR MAKING NAILS Filed March 23, 1935 2 Sheets-Sheet 1 Invenfov 6:202:96 5fiearmarz By Q4,

Attomey 2 Patented July 9, 1935 ,orFicE MEANS FOR MAKING NAILS George F. Shearlnan, Chicago,

Ill.', assignor of I fifty per cent toWilliam E. Boyington, Chicago, Q L I Application March 23, 1935-, Serial No. 12,688 4 Claims. (01. 10-53) I r The present invention relates to new and useful improvements in meanslfor manufacturing nails and similar fastening devices, and has for its v primary object to provide dies embodying a novel construction through the medium of which anchoring indentations may be formed in the nail preferably adjacent the point thereof, the material removed from the nail in making the indentations constituting anchoring barbs.

Other objects of the invention are to provide means of the aforementioned character which will be comparatively simple in construction, strong, durable, highly efficient and reliable in operation, compact, and which may be manufactured at low cost. I

The foregoing and many other objects and advantages of the invention will become apparent from a study of the following specification, taken in connection with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views,

and wherein:

Figure 1 is a view in side elevation of a pair of coacting dies constructed in accordance with the present invention.

Figure 2 is a view in end elevation units.

Figure 3 is an end elevational view of the other unit. V

Figure 4 is adetail .view in top plan of the barb shaping member.

Figure 5 is a detail view in barb forming members.

Figure 6 is a detail View looking at the inner end of either of the point forming members.

Figure 7 is a detail view, looking at the inner end of either of the barb forming members.

Figure 8 is a bottom plan view of a portion of either of the point forming members.

Figure 9 is a fragmentary view in horizontal section, taken substantially on the line 9-9 of Figure 1.

Figure, 10 is a fragmentary view in horizontal of one of the plan of one of the section, taken substantially on the line III-I0 of the reference numerals I and 2. The units I and 2 comprise substantially duplicate point dies-"3 the coacting ends of which are formed, as at 4 (see Figures 6 and 9) to shape one end of a nail 6 The units I and 2 further include indentation and barb forming die members I which are secured in position by bolts 8 beneath the members 3. The opposed ends of the members I include cutting or punching edges 9 (see Figure 7) which form the anchoring indentations Ill in the shank of the nail 6 immediately adjacent the point 5. The members 'I further include coacting faces II adjacent the cutting or punching edges 9 for forming the anchoring barbs I2 from the material which is displaced in forming the indentations Ill.

The unit I still further includes a barb-shaping member I3 which is secured beneath the respective member I by the respective bolt 8. The member I3inc1udes bifurcations I4 which project beneath the member I of the unit 2 when the units I and 2 are brought together as clearly 1 shown in Figure 1 of the drawings. Referring now to Figure 4 of the drawings, it will be seen that the bifurcations I4 define a longitudinal slot I5 which accommodates the shank of the nail being made. The inner marginal portions of the tops of the bifurcations M are formed to provide faces I6 which'are engageable by the anchoring barbs I2 in a manner to restrict said anchoring barbs at their upper ends during the manufacture of thenail. Of course, it will be understood that with the dies arranged as in Figure .1, the nail is inverted during the aforementioned operations. In addition to shaping the anchoring barbs I2, the member I3 swages the substantially pointed upper ends of said anchoring barbs in a manner to provide anchoring spurs I1 thereon, as shown to advantage in Figure 12.

It is thought that the operation of the invention will be readily apparent from a consideration of the foregoing. When the units I and 2 are brought together, the members 3 form the point 5 on the nail 6, the members 1 form the indentations II] and the barbs I2, and the member I3 shapes the upper ends of the barbs I2. The members 3 are recessed on their lower sides, as at I8, to accommodate the members I and I3, the recesses I8 providing shoulders I9 which said members 1 and I3 abut at their outer ends. Itwill thus be seen that means has been provided for forming the points, anchoring indentations, and anchoring barbs simultaneously on the nail.

It is believed that the many advantages of a t P W ,5 9.

nail making means constructed in accordance with the present invention will be readily understood, and although a preferred embodiment of the invention is as illustrated and described, it is -to be understood that modifications or changes in the details of construction and in the combination and arrangement of parts may be resorted to which will fall within the scope of the invention as claimed. For example, the members 3 and I of the units I and 2 may be integral and the member l3 left as a separate part or, if desired, the members 3, I and I3 of the unit I may be integral.

What is claimed is:

1. A nail die comprising a pair of units, each unit including coacting members comprising means for forming a point on a nail, each unit further including coacting means for cutting indentations in the nail, each unit still further including coacting means for forming anchoring barbs on the nail from the material cut from said nail.

2. A nail die comprising a pair of units, each unit including coacting members for forming a point on a nail, and coacting members mounted on the first-named members and comprising means for cutting indentations in the nail adjacent the point, the second-named members further including coacting means for forming barbs on the nail from the material cut from said nail.

3. A nail die comprising a pair of units, each unit including coacting members for forming a point on a nail, coacting members mounted on the first-named members and comprising means for cutting indentations in the nail adjacent the point, the second-named members further including means for forming barbs on the nail from the material cut from said nail, and a member mounted on one of the second-named members for shaping the barbs.

4. A nail die comprising a pair of units, said units including coacting means for forming a point on a nail, said units further including coacting means for cutting indentations in the nail adjacent the point, said units further including coacting means for forming barbs on the nail from the material cut from said nail, and means on one of said units for shaping the barbs.

GEORGE F. SHEARMAN. 

